2 * Copyright 2012 Red Hat Inc.
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26 #include <core/class.h>
28 #include <subdev/bios.h>
29 #include <subdev/bios/dcb.h>
30 #include <subdev/timer.h>
35 nv50_dac_power(struct nv50_disp_priv *priv, int or, u32 data)
37 const u32 stat = (data & NV50_DISP_DAC_PWR_HSYNC) |
38 (data & NV50_DISP_DAC_PWR_VSYNC) |
39 (data & NV50_DISP_DAC_PWR_DATA) |
40 (data & NV50_DISP_DAC_PWR_STATE);
41 const u32 doff = (or * 0x800);
42 nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
43 nv_mask(priv, 0x61a004 + doff, 0xc000007f, 0x80000000 | stat);
44 nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
49 nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval)
51 const u32 doff = (or * 0x800);
53 nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
55 nv_wr32(priv, 0x61a00c + doff, 0x80000000);
56 load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27;
57 nv_wr32(priv, 0x61a00c + doff, 0x00000000);
62 nv50_dac_mthd(struct nouveau_object *object, u32 mthd, void *args, u32 size)
64 struct nv50_disp_priv *priv = (void *)object->engine;
65 const u8 or = (mthd & NV50_DISP_DAC_MTHD_OR);
69 if (size < sizeof(u32))
72 switch (mthd & ~0x3f) {
73 case NV50_DISP_DAC_PWR:
74 ret = priv->dac.power(priv, or, data[0]);
76 case NV50_DISP_DAC_LOAD:
77 ret = priv->dac.sense(priv, or, data[0]);